With Organic Cotton LayerMoms like you are concerned about your baby's safety and comfort, with our 2 in 1 Crib Mattress with Medical Grade Cover, you don't have to worry. The extra heavy gauge coils, border rods and orthopedic support layers create a firm surface to help baby's spine development and prevents loss of cushion. With the anti-bacterial and non toxic laminated cover, spills are a breeze to clean up.